Schaltung, Kommunikationseinheit und Verfahren zur Vco-Frequenzanpassung

Details

Veröffentlichungs-Nr.

EP3016340

Aktenzeichen

EP15191644

Anmeldetag

27. Oktober 2015

Veröffentlichung

14. März 2018

Erteilung

14. März 2018

Rechtsraum

EP

IPC

H04L27/36H03L7/197

Abstract

A circuit comprises a frequency generation circuit (322) comprising a phase locked loop, PLL, arranged to generate a carrier frequency; and a controller (308) operably coupled to the frequency generation circuit and arranged to determine a frequency location of one or more signals output by the frequency generation circuit (322) and provide a control signal thereto to adjust the carrier frequency generated by the frequency generation circuit (322). The controller (308) is arranged to: cooperate with the PLL to introduce a frequency offset in the generated carrier frequency in a first frequency direction; and introduce a compensating frequency offset in a baseband transmit signal in a second frequency direction opposite to the first frequency direction.

Anmelder

Firmen

MediaTek Inc.
MediaTek, Inc

Land

🇹🇼 Taiwan

Fachgebiete